Trusted Sources

Google Knowledge Graph: Entity isReference Domains

Dataset: 62,202 isReference domains | entities

Proprietary analysis of Google's entity validation patterns across the Knowledge Graph.

The Google leak in May 2024 confirmed that Google explicitly associates people with their profile pages (isReference) and articles they have written (isAuthor).

⚠️ You Can't Use Just ANY Domain!

Out of 1,738,093 domains we monitor, only 62,202 qualify as isReference domains.

3.65%

Only 3.65% of domains earn isReference status from Google. Domain selection is critical.

Key concepts:

Wikipedia is NOT Required (or even your best bet)

Wikipedia: 6 million entities
Kalicube Pro: 71 million entities
Knowledge Graph: 50 billion entities

0.012%

Wikipedia covers only 0.012% of the Knowledge Graph. If your entity isn't in that 0.012%, you need to build a Knowledge Panel with ~30 isReference url instead.

📊 Kalicube's Entity Validation Dataset

1,738,093
Domains Checked Regularly
62,202
isReference Domains
3.58% qualify
23,295,240
URLs Monitored
72,707,597
Entities Tracked

💡 Even Small Niche Domains Have isReference Authority

Examples from our dataset (December 2025):

kalicube.com 21 entities
searchengineland.com 11 entities
jasonbarnard.com 86 entities
searchenginejournal.com 270 entities
entrepreneur.com 1,292 entities
forbes.com 2,823 entities

Your niche-specific domains may have similar authority in your category.

Top 100 isReference Domains for All Entity Types

Rank Domain Entity Count
1 wikipedia.org 1,121,289
2 twitter.com 151,967
3 instagram.com 133,257
4 linkedin.com 128,624
5 x.com 104,062
6 allocine.fr 101,740
7 amazon.com 64,754
8 facebook.com 62,920
9 deezer.com 55,938
10 namu.wiki 38,721
11 youtube.com 36,117
12 google.com 33,263
13 legacy.com 28,895
14 britannica.com 21,238
15 reddit.com 17,767
16 dictionary.com 15,856
17 wiktionary.org 13,801
18 microsoft.com 13,365
19 trustpilot.com 12,717
20 fandom.com 12,135
21 isfdb.org 11,161
22 yahoo.com 10,175
23 crunchbase.com 9,338
24 tiktok.com 9,179
25 metacritic.com 9,121
26 rottentomatoes.com 8,712
27 letterboxd.com 7,879
28 gutenberg.org 7,668
29 espn.com 7,414
30 github.com 7,009
31 fifa.com 6,646
32 justwatch.com 6,649
33 apple.com 6,556
34 uk.com 6,540
35 history.com 5,920
36 quora.com 5,592
37 shopee.co.id 5,410
38 cambridge.org 5,260
39 wikia.com 5,249
40 hbomax.com 5,154
41 wikiwand.com 5,056
42 spotify.com 5,029
43 epicgames.com 4,877
44 bbc.co.uk 4,724
45 webuy.com 4,606
46 billboard.com 4,526
47 plus.lefigaro.fr 4,526
48 premiere.fr 4,485
49 time.is 4,443
50 theguardian.com 4,433
51 pinterest.com 4,425
52 forbes.com 4,350
53 imdb.com 4,342
54 shopee.ph 4,280
55 nfl.com 3,950
56 vocabulary.com 3,787
57 nhl.com 3,773
58 bbc.com 3,767
59 ign.com 3,756
60 bloomberg.com 3,700
61 hotels.com 3,584
62 bing.com 3,542
63 ca.gov 3,367
64 google.co.il 3,357
65 reuters.com 3,318
66 independent.co.uk 3,299
67 dell.com 3,225
68 google.com.br 3,140
69 indeed.com 3,133
70 genius.com 3,054
71 pornhub.com 3,041
72 dictionary.net 2,962
73 soundcloud.com 2,961
74 famousbirthdays.com 2,955
75 itv.com 2,935
76 house.gov 2,852
77 netflix.com 2,809
78 nytimes.com 2,773
79 nih.gov 2,668
80 playstation.com 2,669
81 vikidia.org 2,612
82 radiofrance.fr 2,602
83 washington.edu 2,572
84 thesaurus.com 2,493
85 france24.com 2,480
86 search.google 2,425
87 chess.com 2,368
88 eo-paris.fr 2,368
89 nintendo.com 2,326
90 the-independent.com 2,297
91 rateyourmusic.com 2,279
92 nasa.gov 2,220
93 gov.uk 2,208
94 mit.edu 2,204
95 gog.com 2,187
96 kpmg.com 2,146
97 loc.gov 2,142
98 office.com 2,107
99 nps.gov 2,071
100 watch.plex.tv 2,072
101+ 62,102 additional niche-specific domains in full dataset covering 70,197,881 additional entities

Why This Data Matters

Google validates entity information through patterns of corroborating mentions across trusted domains. This list shows where Google recognizes all entity types - but here's the catch: entity authority is extremely niche-specific.

Entity Validation at Scale

Google's Knowledge Graph requires consistent entity recognition across validated domains.

  • Only 3.65% of domains (62202 out of 1738093) qualify as isReference
  • Brands typically need ~30 entity-validated url for a stable Knowledge Panel
  • Each niche has unique entity authority patterns
  • Generic "authority lists" miss 95%+ of niche-specific opportunities

⚠️ This Free List is Intentionally Limited

The top 100 domains shown above are dominated by massive generalist sites. For 99% of brands, the real opportunities lie in the niche-specific domains that only appear in our full platform dataset.

Recommended Reading:

🔐 Find YOUR Niche-Specific isReference Domains

We monitor 23M+ URLs across 1.7M domains to identify the exclusive 3.65% that qualify as isReference domains for 72M+ entities. The Kalicube Pro platform maps your competitive landscape and identifies your niche-specific opportunities in 15 minutes.

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